Flexor muscle

The type of muscle that has the opposite effect is the extensor muscle, which opens a joint, increasing the angle between legs components. Some of the flexor muscles of the upper limbs are: the brachialis and the biceps. Other types of muscles include: abductors, adductors, supinators and rotators In humans, some muscles include 'flexor' in their name. Some examples are:

• Flexor carpi radialis
• Flexor carpi ulnaris
• Flexor digitorum profundus muscle